Bug 425943

Summary: Make oil paint filter multithreadable.
Product: [Applications] krita Reporter: Radium-bit <leo-nod>
Component: GeneralAssignee: Krita Bugs <krita-bugs-null>
Status: RESOLVED INTENTIONAL    
Severity: wishlist CC: griffinvalley, halla
Priority: NOR    
Version First Reported In: 4.3.0   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Radium-bit 2020-08-29 14:35:46 UTC 
SUMMARY
Hope to increase the CPU usage of the rendering process.

STEPS TO REPRODUCE
1. Perform oil painting filter rendering.

DESCRIPTION
In Krita, the CPU processing thread has been adjusted to the highest. But the CPU usage is still only about 25% during processing. I want it to increase the CPU usage as much as possible when processing images!
In order to take care of some other needs, maybe you can add a new option called the highest CPU usage setting in the performance menu.


SOFTWARE/OS VERSIONS
Windows: 10 build 2004
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
[[ Logs ]]

================================================================================
SESSION: 28 Aug 2020 20:01:07 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 2740
-- -- -- -- -- -- -- --
28 Aug 2020 20:01:07 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 20:01:36 +0800: Importing application/x-krita to application/x-krita. Location: C:/Program Files/Krita (x64)/share/krita/templates/comics/.source/Manga-JpTemplate.kra. Real location: C:/Program Files/Krita (x64)/share/krita/templates/comics/.source/Manga-JpTemplate.kra. Batchmode: 0
28 Aug 2020 20:01:36 +0800: Loaded image from application/x-krita. Size: 1299 * 2067 pixels, 4.16667 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB built-in). Layers: 8
28 Aug 2020 20:05:32 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 20:06:59 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 7432
-- -- -- -- -- -- -- --
28 Aug 2020 20:06:59 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 20:07:58 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 20:08:02 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 8060
-- -- -- -- -- -- -- --
28 Aug 2020 20:08:02 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 20:08:46 +0800: Created image "未命名", 1600 * 1200 pixels, 100 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB-elle-V2-srgbtrc.icc). Layers: 2
28 Aug 2020 20:09:53 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 20:09:56 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 10540
-- -- -- -- -- -- -- --
28 Aug 2020 20:09:56 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 20:10:22 +0800: Importing application/x-krita to application/x-krita. Location: C:/Program Files/Krita (x64)/share/krita/templates/comics/.source/Manga-JpTemplate.kra. Real location: C:/Program Files/Krita (x64)/share/krita/templates/comics/.source/Manga-JpTemplate.kra. Batchmode: 0
28 Aug 2020 20:10:23 +0800: Loaded image from application/x-krita. Size: 1299 * 2067 pixels, 4.16667 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB built-in). Layers: 8
28 Aug 2020 20:12:35 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 20:18:53 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe C:\Users\Administrator\Desktop\_DSC3343.JPG

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 4864
-- -- -- -- -- -- -- --
28 Aug 2020 20:18:53 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 20:19:01 +0800: Importing image/jpeg to application/x-krita. Location: C:/Users/Administrator/Desktop/_DSC3343.JPG. Real location: C:/Users/Administrator/Desktop/_DSC3343.JPG. Batchmode: 0
28 Aug 2020 20:19:01 +0800: Loaded image from image/jpeg. Size: 5456 * 3632 pixels, 4.86111 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB-elle-V2-srgbtrc.icc). Layers: 2
28 Aug 2020 20:34:03 +0800: Autosaving: C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra
28 Aug 2020 20:34:13 +0800: Autosaving: C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra
28 Aug 2020 20:34:23 +0800: Autosaving: C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra
28 Aug 2020 20:34:33 +0800: Autosaving: C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra
28 Aug 2020 20:34:34 +0800: Autosaving: C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra
28 Aug 2020 20:34:34 +0800: Converting from application/x-krita to application/x-krita. Location: C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra. Real location: C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra. Batchmode: 0. Configuration: none
28 Aug 2020 20:34:35 +0800: Completed saving C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra (mime: application/x-krita). Result: OK. Size: 42775731. MD5 Hash: FILE_BIGGER_10MB
28 Aug 2020 20:36:46 +0800: Exporting Document: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG as image/jpeg. 5456 * 3632 pixels, 2 layers, 101 frames, 24 framerate. Export configuration: No configuration
28 Aug 2020 20:37:01 +0800: Converting from application/x-krita to image/jpeg. Location: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG. Real location: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG. Batchmode: 0. Configuration: <!DOCTYPE params>
<params>
 <param type="internal" name="baseline">true</param>
 <param type="internal" name="exif">true</param>
 <param type="string" name="filters"><![CDATA[]]></param>
 <param type="internal" name="forceSRGB">false</param>
 <param type="internal" name="iptc">true</param>
 <param type="internal" name="optimize">true</param>
 <param type="internal" name="progressive">false</param>
 <param type="internal" name="quality">100</param>
 <param type="internal" name="saveProfile">true</param>
 <param type="internal" name="smoothing">0</param>
 <param type="internal" name="storeAuthor">false</param>
 <param type="internal" name="storeMetaData">false</param>
 <param type="internal" name="subsampling">0</param>
 <param type="color" name="transparencyFillcolor"><![CDATA[<!DOCTYPE color>
<color>
 <RGB g="1" space="sRGB-elle-V2-g10.icc" r="1" b="1"/>
</color>
]]></param>
 <param type="internal" name="xmp">true</param>
</params>

28 Aug 2020 20:37:01 +0800: Completed saving C:/Users/Administrator/Desktop/Krita_DSC3343.JPG (mime: image/jpeg). Result: OK. Size: 6741338. MD5 Hash: cdcc092b5da906b21a0c5e1f4aadda82
28 Aug 2020 20:37:01 +0800: Saving Completed
28 Aug 2020 20:37:06 +0800: Removing autosave file: C:/Users/Administrator/Desktop\._DSC3343.JPG-autosave.kra
28 Aug 2020 20:37:06 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 20:52:46 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 13240
-- -- -- -- -- -- -- --
28 Aug 2020 20:52:46 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 20:53:16 +0800: Importing image/jpeg to application/x-krita. Location: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG. Real location: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG. Batchmode: 0
28 Aug 2020 20:53:17 +0800: Loaded image from image/jpeg. Size: 5456 * 3632 pixels, 4.86111 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB-elle-V2-srgbtrc.icc). Layers: 2
28 Aug 2020 20:55:28 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 21:16:36 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 2068
-- -- -- -- -- -- -- --
28 Aug 2020 21:16:36 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 21:17:06 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 22:04:56 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 7412
-- -- -- -- -- -- -- --
28 Aug 2020 22:04:56 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 22:08:52 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 23:07:17 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 8856
-- -- -- -- -- -- -- --
28 Aug 2020 23:07:17 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 23:08:04 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 23:09:35 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 7964
-- -- -- -- -- -- -- --
28 Aug 2020 23:09:35 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 23:09:46 +0800: Importing image/jpeg to application/x-krita. Location: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG. Real location: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG. Batchmode: 0
28 Aug 2020 23:09:47 +0800: Loaded image from image/jpeg. Size: 5456 * 3632 pixels, 4.86111 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB-elle-V2-srgbtrc.icc). Layers: 2
28 Aug 2020 23:11:24 +0800: CLOSING SESSION
================================================================================
SESSION: 28 Aug 2020 23:31:31 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 604
-- -- -- -- -- -- -- --
28 Aug 2020 23:31:31 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
28 Aug 2020 23:31:46 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 16:48:51 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 11856
-- -- -- -- -- -- -- --
29 Aug 2020 16:48:51 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 16:52:33 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 17:02:49 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 13292
-- -- -- -- -- -- -- --
29 Aug 2020 17:02:49 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 17:08:27 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 17:08:30 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 10580
-- -- -- -- -- -- -- --
29 Aug 2020 17:08:30 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 17:09:26 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 17:55:47 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 4788
-- -- -- -- -- -- -- --
29 Aug 2020 17:55:47 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 17:56:25 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 21:25:27 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 11936
-- -- -- -- -- -- -- --
29 Aug 2020 21:25:27 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 21:25:53 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 21:26:03 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 1200
-- -- -- -- -- -- -- --
29 Aug 2020 21:26:03 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 21:26:29 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 21:26:32 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 10124
-- -- -- -- -- -- -- --
29 Aug 2020 21:26:32 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 21:28:01 +0800: Created image "未命名", 1600 * 1200 pixels, 100 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB-elle-V2-srgbtrc.icc). Layers: 2
29 Aug 2020 21:29:47 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 21:29:51 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 4436
-- -- -- -- -- -- -- --
29 Aug 2020 21:29:51 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 21:33:48 +0800: Created image "未命名", 1600 * 1200 pixels, 100 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB-elle-V2-srgbtrc.icc). Layers: 2
29 Aug 2020 21:34:40 +0800: Importing image/vnd.adobe.photoshop to application/x-krita. Location: C:/Users/Administrator/Pictures/小区风景.psd. Real location: C:/Users/Administrator/Pictures/小区风景.psd. Batchmode: 0
29 Aug 2020 21:34:44 +0800: Loaded image from image/vnd.adobe.photoshop. Size: 5456 * 3632 pixels, 4.16667 dpi. Color model: 16 位整数/通道 RGB/透明度 (sRGB IEC61966-2.1). Layers: 5
29 Aug 2020 21:36:49 +0800: Saving Document C:/Users/Administrator/Pictures/小区风景.psd as C:/Users/Administrator/Pictures/小区风景.kra (mime: application/x-krita). 5456 * 3632 pixels, 5 layers.  101 frames, 24 framerate. Export configuration: No configuration
29 Aug 2020 21:36:49 +0800: Converting from application/x-krita to application/x-krita. Location: C:/Users/Administrator/Pictures/小区风景.kra. Real location: C:/Users/Administrator/Pictures/小区风景.kra. Batchmode: 0. Configuration: none
29 Aug 2020 21:37:00 +0800: Completed saving C:/Users/Administrator/Pictures/小区风景.kra (mime: application/x-krita). Result: OK. Size: 143428438. MD5 Hash: FILE_BIGGER_10MB
29 Aug 2020 21:37:00 +0800: Saving Completed
================================================================================
SESSION: 29 Aug 2020 21:45:37 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 8780
-- -- -- -- -- -- -- --
29 Aug 2020 21:45:37 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 21:45:47 +0800: Importing application/x-krita to application/x-krita. Location: C:/Users/Administrator/Pictures/小区风景.kra. Real location: C:/Users/Administrator/Pictures/小区风景.kra. Batchmode: 0
29 Aug 2020 21:45:49 +0800: Loaded image from application/x-krita. Size: 5456 * 3632 pixels, 4.16667 dpi. Color model: 16 位整数/通道 RGB/透明度 (sRGB IEC61966-2.1). Layers: 5
29 Aug 2020 21:45:49 +0800: Importing application/x-krita to application/x-krita. Location: C:/Users/Administrator/Pictures/小区风景.kra. Real location: C:/Users/Administrator/Pictures/小区风景.kra. Batchmode: 0
29 Aug 2020 21:45:50 +0800: Loaded image from application/x-krita. Size: 5456 * 3632 pixels, 4.16667 dpi. Color model: 16 位整数/通道 RGB/透明度 (sRGB IEC61966-2.1). Layers: 5
29 Aug 2020 21:46:30 +0800: Saving Document C:/Users/Administrator/Pictures/小区风景.kra as C:/Users/Administrator/Pictures/小区风景.kra (mime: application/x-krita). 5456 * 3632 pixels, 5 layers.  101 frames, 24 framerate. Export configuration: No configuration
29 Aug 2020 21:46:34 +0800: Create a simple backup for C:/Users/Administrator/Pictures/小区风景.kra in the same location as the file.
29 Aug 2020 21:46:34 +0800: Converting from application/x-krita to application/x-krita. Location: C:/Users/Administrator/Pictures/小区风景.kra. Real location: C:/Users/Administrator/Pictures/小区风景.kra. Batchmode: 0. Configuration: none
29 Aug 2020 21:46:49 +0800: Completed saving C:/Users/Administrator/Pictures/小区风景.kra (mime: application/x-krita). Result: OK. Size: 143218219. MD5 Hash: FILE_BIGGER_10MB
29 Aug 2020 21:46:49 +0800: Saving Completed
29 Aug 2020 21:51:12 +0800: SAFE ASSERT (krita): "changeList.memento == memento" in file C:\Packaging\workspace\Krita_Release_Windows64_Build\krita\libs\image\tiles3\kis_memento_manager.cc, line 278
29 Aug 2020 21:54:12 +0800: Saving Document C:/Users/Administrator/Pictures/小区风景.kra as C:/Users/Administrator/Pictures/小区风景.kra (mime: application/x-krita). 5456 * 3632 pixels, 5 layers.  101 frames, 24 framerate. Export configuration: No configuration
29 Aug 2020 21:54:13 +0800: Create a simple backup for C:/Users/Administrator/Pictures/小区风景.kra in the same location as the file.
29 Aug 2020 21:54:13 +0800: Converting from application/x-krita to application/x-krita. Location: C:/Users/Administrator/Pictures/小区风景.kra. Real location: C:/Users/Administrator/Pictures/小区风景.kra. Batchmode: 0. Configuration: none
29 Aug 2020 21:54:21 +0800: Completed saving C:/Users/Administrator/Pictures/小区风景.kra (mime: application/x-krita). Result: OK. Size: 108927649. MD5 Hash: FILE_BIGGER_10MB
29 Aug 2020 21:54:21 +0800: Saving Completed
29 Aug 2020 22:00:22 +0800: Exporting Document: C:/Users/Administrator/Desktop/小区风景.jpg as image/jpeg. 5456 * 3632 pixels, 5 layers, 101 frames, 24 framerate. Export configuration: No configuration
29 Aug 2020 22:00:45 +0800: Converting from application/x-krita to image/jpeg. Location: C:/Users/Administrator/Desktop/小区风景.jpg. Real location: C:/Users/Administrator/Desktop/小区风景.jpg. Batchmode: 0. Configuration: <!DOCTYPE params>
<params>
 <param type="internal" name="baseline">true</param>
 <param type="internal" name="exif">true</param>
 <param type="string" name="filters"><![CDATA[]]></param>
 <param type="internal" name="forceSRGB">false</param>
 <param type="internal" name="iptc">true</param>
 <param type="internal" name="optimize">true</param>
 <param type="internal" name="progressive">false</param>
 <param type="internal" name="quality">100</param>
 <param type="internal" name="saveProfile">true</param>
 <param type="internal" name="smoothing">100</param>
 <param type="internal" name="storeAuthor">false</param>
 <param type="internal" name="storeMetaData">false</param>
 <param type="internal" name="subsampling">3</param>
 <param type="color" name="transparencyFillcolor"><![CDATA[<!DOCTYPE color>
<color>
 <RGB g="1" space="sRGB-elle-V2-g10.icc" r="1" b="1"/>
</color>
]]></param>
 <param type="internal" name="xmp">true</param>
</params>

29 Aug 2020 22:00:47 +0800: Completed saving C:/Users/Administrator/Desktop/小区风景.jpg (mime: image/jpeg). Result: OK. Size: 8982666. MD5 Hash: d69ef1645ec38639328816c4187b1c14
29 Aug 2020 22:00:47 +0800: Saving Completed
29 Aug 2020 22:00:50 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 22:01:31 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe C:\Users\Administrator\Desktop\Krita_DSC3343.JPG

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 4140
-- -- -- -- -- -- -- --
29 Aug 2020 22:01:31 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
29 Aug 2020 22:01:39 +0800: Importing image/jpeg to application/x-krita. Location: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG. Real location: C:/Users/Administrator/Desktop/Krita_DSC3343.JPG. Batchmode: 0
29 Aug 2020 22:01:40 +0800: Loaded image from image/jpeg. Size: 5456 * 3632 pixels, 4.86111 dpi. Color model: 8 位整数/通道 RGB/透明度 (sRGB-elle-V2-srgbtrc.icc). Layers: 2
29 Aug 2020 22:03:05 +0800: Saving Document C:/Users/Administrator/Desktop/Krita_DSC3343.JPG as C:/Users/Administrator/Pictures/Krita_Dawn.kra (mime: application/x-krita). 5456 * 3632 pixels, 2 layers.  101 frames, 24 framerate. Export configuration: No configuration
29 Aug 2020 22:03:05 +0800: Converting from application/x-krita to application/x-krita. Location: C:/Users/Administrator/Pictures/Krita_Dawn.kra. Real location: C:/Users/Administrator/Pictures/Krita_Dawn.kra. Batchmode: 0. Configuration: none
29 Aug 2020 22:03:10 +0800: Completed saving C:/Users/Administrator/Pictures/Krita_Dawn.kra (mime: application/x-krita). Result: OK. Size: 53818169. MD5 Hash: FILE_BIGGER_10MB
29 Aug 2020 22:03:10 +0800: Saving Completed
29 Aug 2020 22:07:08 +0800: Saving Document C:/Users/Administrator/Pictures/Krita_Dawn.kra as C:/Users/Administrator/Pictures/Krita_Dawn.kra (mime: application/x-krita). 5456 * 3632 pixels, 2 layers.  101 frames, 24 framerate. Export configuration: No configuration
29 Aug 2020 22:07:08 +0800: Create a simple backup for C:/Users/Administrator/Pictures/Krita_Dawn.kra in the same location as the file.
29 Aug 2020 22:07:09 +0800: Converting from application/x-krita to application/x-krita. Location: C:/Users/Administrator/Pictures/Krita_Dawn.kra. Real location: C:/Users/Administrator/Pictures/Krita_Dawn.kra. Batchmode: 0. Configuration: none
29 Aug 2020 22:07:11 +0800: Completed saving C:/Users/Administrator/Pictures/Krita_Dawn.kra (mime: application/x-krita). Result: OK. Size: 23057864. MD5 Hash: FILE_BIGGER_10MB
29 Aug 2020 22:07:11 +0800: Saving Completed
29 Aug 2020 22:07:29 +0800: Exporting Document: C:/Users/Administrator/Desktop/Krita_Dawn.jpg as image/jpeg. 5456 * 3632 pixels, 2 layers, 101 frames, 24 framerate. Export configuration: No configuration
29 Aug 2020 22:07:33 +0800: Converting from application/x-krita to image/jpeg. Location: C:/Users/Administrator/Desktop/Krita_Dawn.jpg. Real location: C:/Users/Administrator/Desktop/Krita_Dawn.jpg. Batchmode: 0. Configuration: <!DOCTYPE params>
<params>
 <param name="baseline" type="internal">true</param>
 <param name="exif" type="internal">true</param>
 <param name="filters" type="string"><![CDATA[]]></param>
 <param name="forceSRGB" type="internal">false</param>
 <param name="iptc" type="internal">true</param>
 <param name="optimize" type="internal">true</param>
 <param name="progressive" type="internal">false</param>
 <param name="quality" type="internal">100</param>
 <param name="saveProfile" type="internal">true</param>
 <param name="smoothing" type="internal">100</param>
 <param name="storeAuthor" type="internal">false</param>
 <param name="storeMetaData" type="internal">false</param>
 <param name="subsampling" type="internal">3</param>
 <param name="transparencyFillcolor" type="color"><![CDATA[<!DOCTYPE color>
<color>
 <RGB space="sRGB-elle-V2-g10.icc" g="1" r="1" b="1"/>
</color>
]]></param>
 <param name="xmp" type="internal">true</param>
</params>

29 Aug 2020 22:07:34 +0800: Completed saving C:/Users/Administrator/Desktop/Krita_Dawn.jpg (mime: image/jpeg). Result: OK. Size: 4098378. MD5 Hash: 79593e2c22ffa571848f575b56744118
29 Aug 2020 22:07:34 +0800: Saving Completed
29 Aug 2020 22:07:50 +0800: Importing application/x-krita to application/x-krita. Location: C:/Users/Administrator/Pictures/小区风景.kra. Real location: C:/Users/Administrator/Pictures/小区风景.kra. Batchmode: 0
29 Aug 2020 22:07:51 +0800: Loaded image from application/x-krita. Size: 5456 * 3632 pixels, 4.16667 dpi. Color model: 16 位整数/通道 RGB/透明度 (sRGB IEC61966-2.1). Layers: 5
29 Aug 2020 22:08:29 +0800: CLOSING SESSION
================================================================================
SESSION: 29 Aug 2020 22:21:03 +0800. Executing C:\Program Files\Krita (x64)\bin\krita.exe

Krita Version: 4.3.0, Qt version compiled: 5.12.8, loaded: 5.12.8. Process ID: 2732
-- -- -- -- -- -- -- --
29 Aug 2020 22:21:03 +0800: Style: fusion. Available styles: windowsvista, Windows, Fusion
Comment 1 wolthera 2020-08-29 14:40:34 UTC 
Erm, well, what is going on is that the filter in question is not multithreaded, so it will always use only one of your cores. 

It looks to be a convolution-like filter, but it would need a closer look.
Comment 2 Halla Rempt 2020-08-29 16:04:31 UTC 
It's one of the older filters taking from a nineties thesis. It cannot be multithreaded because of the way it works, I'm afraid.